diff options
Diffstat (limited to 'Python/thread_os2.h')
| -rw-r--r-- | Python/thread_os2.h | 44 |
1 files changed, 37 insertions, 7 deletions
diff --git a/Python/thread_os2.h b/Python/thread_os2.h index 86e91c1e1a..12eeed51c4 100644 --- a/Python/thread_os2.h +++ b/Python/thread_os2.h @@ -14,10 +14,13 @@ long PyThread_get_thread_ident(void); #endif +/* default thread stack size of 64kB */ #if !defined(THREAD_STACK_SIZE) #define THREAD_STACK_SIZE 0x10000 #endif +#define OS2_STACKSIZE(x) (x ? x : THREAD_STACK_SIZE) + /* * Initialization of the C package, should not be needed. */ @@ -32,18 +35,18 @@ PyThread__init_thread(void) long PyThread_start_new_thread(void (*func)(void *), void *arg) { - int aThread; - int success = 0; + int thread_id; - aThread = _beginthread(func, NULL, THREAD_STACK_SIZE, arg); + thread_id = _beginthread(func, + NULL, + OS2_STACKSIZE(_pythread_stacksize), + arg); - if (aThread == -1) { - success = -1; - fprintf(stderr, "aThread failed == %d", aThread); + if (thread_id == -1) { dprintf(("_beginthread failed. return %ld\n", errno)); } - return success; + return thread_id; } long @@ -275,3 +278,30 @@ PyThread_release_lock(PyThread_type_lock aLock) DosExitCritSec(); #endif } + +/* minimum/maximum thread stack sizes supported */ +#define THREAD_MIN_STACKSIZE 0x8000 /* 32kB */ +#define THREAD_MAX_STACKSIZE 0x2000000 /* 32MB */ + +/* set the thread stack size. + * Return 0 if size is valid, -1 otherwise. + */ +static int +_pythread_os2_set_stacksize(size_t size) +{ + /* set to default */ + if (size == 0) { + _pythread_stacksize = 0; + return 0; + } + + /* valid range? */ + if (size >= THREAD_MIN_STACKSIZE && size < THREAD_MAX_STACKSIZE) { + _pythread_stacksize = size; + return 0; + } + + return -1; +} + +#define THREAD_SET_STACKSIZE(x) _pythread_os2_set_stacksize(x) |